CVE-2025-20202

Description

A vulnerability in Cisco IOS XE Wireless Controller Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of access point (AP) Cisco Discovery Protocol (CDP) neighbor reports when they are processed by the wireless controller. An attacker could exploit this vulnerability by sending a crafted CDP packet to an AP. A successful exploit could allow the attacker to cause an unexpected reload of the wireless controller that is managing the AP, resulting in a DoS condition that affects the wireless network.

Reserved 2024-10-10 | Published 2025-05-07 | Updated 2025-05-07 | Assigner cisco

Problem types

Buffer Access with Incorrect Length Value

Product status

16.10.1
affected

16.10.1a
affected

16.10.1b
affected

16.10.1s
affected

16.10.1c
affected

16.10.1e
affected

16.10.1d
affected

16.10.2
affected

16.10.1f
affected

16.10.1g
affected

16.10.3
affected

16.11.1
affected

16.11.1a
affected

16.11.1b
affected

16.11.2
affected

16.11.1s
affected

16.12.1
affected

16.12.1s
affected

16.12.1a
affected

16.12.1c
affected

16.12.1w
affected

16.12.2
affected

16.12.1y
affected

16.12.2a
affected

16.12.3
affected

16.12.8
affected

16.12.2s
affected

16.12.1x
affected

16.12.1t
affected

16.12.4
affected

16.12.3s
affected

16.12.3a
affected

16.12.4a
affected

16.12.5
affected

16.12.6
affected

16.12.1z1
affected

16.12.5a
affected

16.12.5b
affected

16.12.1z2
affected

16.12.6a
affected

16.12.7
affected

16.12.9
affected

16.12.10
affected

16.12.10a
affected

16.12.11
affected

16.12.12
affected

17.1.1
affected

17.1.1a
affected

17.1.1s
affected

17.1.1t
affected

17.1.3
affected

17.2.1
affected

17.2.1r
affected

17.2.1a
affected

17.2.1v
affected

17.2.2
affected

17.2.3
affected

17.3.1
affected

17.3.2
affected

17.3.3
affected

17.3.1a
affected

17.3.1w
affected

17.3.2a
affected

17.3.1x
affected

17.3.1z
affected

17.3.4
affected

17.3.5
affected

17.3.4a
affected

17.3.6
affected

17.3.4b
affected

17.3.4c
affected

17.3.5a
affected

17.3.5b
affected

17.3.7
affected

17.3.8
affected

17.3.8a
affected

17.4.1
affected

17.4.2
affected

17.4.1a
affected

17.4.1b
affected

17.4.2a
affected

17.5.1
affected

17.5.1a
affected

17.6.1
affected

17.6.2
affected

17.6.1w
affected

17.6.1a
affected

17.6.1x
affected

17.6.3
affected

17.6.1y
affected

17.6.1z
affected

17.6.3a
affected

17.6.4
affected

17.6.1z1
affected

17.6.5
affected

17.6.6
affected

17.6.6a
affected

17.6.5a
affected

17.6.7
affected

17.6.8
affected

17.6.8a
affected

17.7.1
affected

17.7.1a
affected

17.7.1b
affected

17.7.2
affected

17.10.1
affected

17.10.1a
affected

17.10.1b
affected

17.8.1
affected

17.8.1a
affected

17.9.1
affected

17.9.1w
affected

17.9.2
affected

17.9.1a
affected

17.9.1x
affected

17.9.1y
affected

17.9.3
affected

17.9.2a
affected

17.9.1x1
affected

17.9.3a
affected

17.9.4
affected

17.9.1y1
affected

17.9.5
affected

17.9.4a
affected

17.9.5a
affected

17.9.5b
affected

17.9.5e
affected

17.9.5f
affected

17.11.1
affected

17.11.1a
affected

17.12.1
affected

17.12.1w
affected

17.12.1a
affected

17.12.1x
affected

17.12.2
affected

17.12.3
affected

17.12.2a
affected

17.12.1y
affected

17.12.1z
affected

17.12.4
affected

17.12.3a
affected

17.12.1z1
affected

17.12.4a
affected

17.12.4b
affected

17.13.1
affected

17.13.1a
affected

17.14.1
affected

17.14.1a
affected

17.11.99SW
affected

17.15.1
affected

17.15.1w
affected

17.15.1a
affected

17.15.1b
affected

References

sec.cloudapps.cisco.com/...ory/cisco-sa-ewlc-cdp-dos-fpeks9K (cisco-sa-ewlc-cdp-dos-fpeks9K)

cve.org (CVE-2025-20202)

nvd.nist.gov (CVE-2025-20202)

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